Messages in this thread | | | Date | Thu, 21 Dec 2023 15:16:36 +0100 | From | Dimitri Fedrau <> | Subject | Re: [PATCH v3 4/4] net: phy: marvell-88q2xxx: add driver for the Marvell 88Q2220 PHY |
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Am Thu, Dec 21, 2023 at 02:47:57PM +0100 schrieb Stefan Eichenberger: > Hi Dimitri, > Hi Stefan,
> On Thu, Dec 21, 2023 at 08:28:51AM +0100, Dimitri Fedrau wrote: > > Add a driver for the Marvell 88Q2220. This driver allows to detect the > > link, switch between 100BASE-T1 and 1000BASE-T1 and switch between > > master and slave mode and autonegotiation. > > > > Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com> > > I tried to make your patch work in my setup but I'm unable to force a > link speed. Were you able to force a different link speed with the > following command? > ethtool -s eth0 speed 100 autoneg off >
I tested following modes, which all worked:
ethtool -s eth0 autoneg on master-slave forced-master ethtool -s eth0 autoneg on master-slave preferred-master ethtool -s eth0 autoneg on master-slave preferred-slave ethtool -s eth0 autoneg on master-slave forced-slave
ethtool -s eth0 autoneg on master-slave forced-master speed 100 ethtool -s eth0 autoneg on master-slave preferred-master speed 100 ethtool -s eth0 autoneg on master-slave preferred-slave speed 100 ethtool -s eth0 autoneg on master-slave forced-slave speed 100
ethtool -s eth0 autoneg off master-slave forced-master speed 1000 ethtool -s eth0 autoneg off master-slave preferred-master speed 1000 ethtool -s eth0 autoneg off master-slave preferred-slave speed 1000 ethtool -s eth0 autoneg off master-slave forced-slave speed 1000
ethtool -s eth0 autoneg off master-slave forced-master speed 100 ethtool -s eth0 autoneg off master-slave preferred-master speed 100 ethtool -s eth0 autoneg off master-slave preferred-slave speed 100 ethtool -s eth0 autoneg off master-slave forced-slave speed 100
Without setting the master-slave option it didn't work. I think its mandatory.
> Regards, > Stefan
Best regards, Stefan
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